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An architect is tasked with designing a new VMware software-defined data center (SDDC) using VMware vSAN. The architect uses a storage assessment tool to determine the storage requirements for the new vSAN cluster. The new SDDC is going to be deployed into the existing data center and must be connected to a shared core network switch.
The architect decides to use vSAN ReadyNodes with the following configuration:
Two disk groups with:
Write Intensive NVMe 800 GB drive for cache
Four 3.84 TB Mixed Use NVMe for capacity
Four 10 GbE ports
Which element represents a risk that should be included in this design?
Answer : C
A VMware Service Provider is tasked with delivering a solution for continuous availability for a subset of Tier 1 virtual machines (VMs) and vApps running in their vSAN environment. The VMs make up a mission-critical application and there can be no data loss in the event of an outage at their primary data center. In the event of a regional outage, they have established a 10-minute recovery point objective (RPO). Failover/failback to the third site must be automated.
They have the following in place:
Two local data centers (primary and secondary) connected with 100 Gb dedicated fiber
2ms round-trip time (RTT) latency between the sites
A third data center located on another power grid
70ms latency between the primary and secondary data centers
Matching storage arrays at all locations
Which two solutions could be used to meet the requirements? (Choose two.)
Answer : A, C
https://core.vmware.com/resource/vsan-stretched-cluster-guide#section1
- a latency of less than or equal to 100 milliseconds is preferred.
Witness to Site -- less than 100msec; 200msec is acceptable https://www.delltechnologies.com/asset/en-us/products/converged-infrastructure/technical-support/vxrail-stretched-cluster-planning-guide-for-7-0.pdf - a latency of less than or equal to 100 milliseconds is preferred.
During a requirements gathering workshop, the customer provides the following information:
Each host has 2 10 GbE NIC
EtherChannel is not currently configured
No changes can be made to the physical network
Network throughput must be prioritized for defined critical services
Which two recommendations should the architect make with regard to virtual networking? (Choose two.)
Answer : A, B
A new real-time financial service application is being developed by the engineering team at a financial firm and will be released as a public Software-as-a-Service (SaaS) offering. The solutions architect has designed and deployed a new vSphere environment and the supporting network infrastructure for hosting all public services. ESXi hosts are configured to use Precision Time Proalhazi@1tocol (PTP) and a local stratum-1 network time server.
Application provisioning and scaling will be managed by VMware vRealize Automation and can be run on Microsoft Windows or multiple distributions of Linux.
Which three recommendations should the architect include in the design to ensure that the service maintain timekeeping within an accuracy of one second? (Choose three.)
Answer : B, D, E
https://blogs.vmware.com/apps/2021/04/lets-be-precise-enabling-and-configuring-precision-time-protocol-in-vsphere.html
https://core.vmware.com/blog/introducing-ptpvmw-new-linux-driver-achieve-high-time-synchronization-accuracy
https://blogs.vmware.com/apps/2020/09/ensuring-accurate-time-keeping-in-virtualized-active-directory-infrastructure.html
Which requirement would be classified as a functional requirement within the design documentation?
Answer : D
